MrPerrault, 75 Years of Age, Was Diagnosed with Parkinson's Disease

Multiple Choice

Mr.Perrault, 75 years of age, was diagnosed with Parkinson's disease two years ago.Over the last 24 hours, he appears to have become more confused and agitated.Which of the following should the nurse consider as a possible cause of these symptoms, knowing that Mr.Perrault is receiving medication to alleviate some of his Parkinson's disease symptoms?

A) Delirium and dementia
B) Adverse drug reaction and delirium
C) Dementia and adverse drug reaction
D) Worsening of dementia